Analysis
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max time kernel
136s -
max time network
43s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
20-05-2022 22:17
Static task
static1
Behavioral task
behavioral1
Sample
RFQ.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
RFQ.exe
Resource
win10v2004-20220414-en
General
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Target
RFQ.exe
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Size
526KB
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MD5
11cf56fdc6a4d1ad12da37708109133c
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SHA1
245918d53b70ad2df2906dcc27284d09a6dc420c
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SHA256
8cc912eb69cd18bfe0f087b5861c6a9db0937a39ab6db66e08ca2caa344f7402
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SHA512
d4143503e44e577b08e8f5f76eb3cef33308e6d8d84c0d2221aaeb1475f6b02bd4c9eee90eb4c5436edfdc9f16df77164ab67ed02f99f028be720c00a1f6253f
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.threewaystoharems.com - Port:
587 - Username:
[email protected] - Password:
sales@123456
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 6 IoCs
Processes:
resource yara_rule behavioral1/memory/1544-61-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1544-62-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1544-63-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1544-64-0x000000000044737E-mapping.dmp family_agenttesla behavioral1/memory/1544-66-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1544-68-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
RFQ.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFQ.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFQ.exe Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFQ.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RFQ.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\YYtJku = "C:\\Users\\Admin\\AppData\\Roaming\\YYtJku\\YYtJku.exe" RFQ.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
RFQ.exedescription pid process target process PID 2024 set thread context of 1544 2024 RFQ.exe RFQ.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
RFQ.exeRFQ.exepid process 2024 RFQ.exe 2024 RFQ.exe 1544 RFQ.exe 1544 RFQ.exe -
Suspicious behavior: RenamesItself 1 IoCs
Processes:
RFQ.exepid process 1544 RFQ.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
RFQ.exeRFQ.exedescription pid process Token: SeDebugPrivilege 2024 RFQ.exe Token: SeDebugPrivilege 1544 RFQ.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
RFQ.exedescription pid process target process PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe PID 2024 wrote to memory of 1544 2024 RFQ.exe RFQ.exe -
outlook_office_path 1 IoCs
Processes:
RFQ.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFQ.exe -
outlook_win_path 1 IoCs
Processes:
RFQ.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RFQ.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\RFQ.exe"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2024 -
C:\Users\Admin\AppData\Local\Temp\RFQ.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:1544